The invention discloses a speed variator of a bicycle. The speed variator comprises a rear wheel, a wheel disc and a chain wheel, the chain wheel is in transmission connection with the wheel disc of the rear wheel through a chain, the speed variator further comprises a speed changing shell arranged on one side of the wheel disc and a speed changing groove formed in the rear wheel, and the speed changing groove is formed in the radial direction of the rear wheel; a linkage rod and a power mechanism for driving the linkage rod to move are arranged on the speed change shell, and one end of the linkage rod extends out of the speed changing shell and is arranged in the speed changing groove, so that the wheel disc drives the rear wheel to rotate through the linkage rod on the speed changing shell; and when the power mechanism drives the linkage rod to move along the speed changing groove, the linkage rod is close to or far away from the center of the rear wheel to replace a traditional speed change wheel disc to adjust back and forth from a small disc to a large disc, so the situation that the speed change wheel disc is formed by sequentially arranging multiple discs with different diameters is avoided, the speed change structure is simplified, and the structure is compact.

    本发明公开了一种自行车的变速装置,包括后轮、轮盘和牙盘,所述牙盘通过链条与所述后轮的轮盘传动连接,还包括设置在轮盘的一侧的变速壳体以及开设在后轮上的变速槽,所述变速槽沿后轮径向方向设置;在变速壳体上设置联动杆以及驱使联动杆移动的动力机构,所述联动杆的一端部伸出变速壳体置于变速槽内,使得轮盘通过变速壳体上的联动杆带动后轮旋转;当动力机构带动联动杆沿变速槽移动时,使得联动杆靠近或者远离后轮的中心,来代替传统变速轮盘从小盘到大盘来回调节作用,避免变速轮盘需要多个直径大小不同的盘子依次排列组成,简化变速结构,使得结构更加紧凑。


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    Title :

    Speed variator of bicycle


    Additional title:

    一种自行车的变速装置


    Contributors:
    YE CHI (author)

    Publication date :

    2020-04-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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